Cummins 4BT – Fuel System Identification

Beginning in 1991, the B Series engine will use six different fuel injection pumps depending on the horsepower
rating and application.

The Lucas CAV DPA distributor type fuel injection pump.
โ€ข Marine
โ€ข Industrial

The Lucas CAV DPS distributor type fuel injection pump.
โ€ข European automotive ratings.

The Bosch VE distributor type fuel injection pump.
โ€ข Industrial
โ€ข 1991 low horsepower automotive ratings

The Stanadyne DB4 distributor type fuel injection pump.
โ€ข Gensets

The Bosch P7100 in-line fuel injection pump.
โ€ข 1991 high horsepower automotive ratings
โ€ข 1994 automotive, all 6B ratings

The Nippondenso EP-9 in-line fuel injection pump with the RSV governor.
โ€ข higher horsepower marine rating